Physical-chemical and biopharmaceutical research of ointments with cyminal

Local wound treatment remains one of the most pressing problems of modern medicine. The effectiveness of local drug therapy with the use of various medications depends on the differentiated use of drugs depending on the phase of the wound process. Taking into account modern wound treatment technologies, it is important to develop the composition and technology of an application drug (cream, ointment, gel) taking into account not only the phase of the wound process, but also the Time-concept component, in particular the ability of the drug to create an optimal moist environment and have antimicrobial properties, since the absence of infection in the wound is the basis for successful healing. The aim of our study was to develop an optimal composition of ointment for wound treatment based on technological and physicochemical studies. The rheological properties of the samples were studied using a Reotest-2 rotational viscometer (USA) with a water circulating heater. The structural viscosity was determined at a temperature of 20 ± 0,2 °C. Thermostatization was performed in the ITZH-0-03 thermostat. The temperature was determined by a laboratory thermometer with a division price of 0,1 °C. The acid-base balance was determined potentiometrically according to the State Standard Form I. The pharmacokinetic parameters of the drug were determined by dialysis through a semipermeable membrane. The experimental ointment is a non-Newtonian fluid. Its fluidity begins after a certain mechanical stress is applied, i.e., after the kinetic energy of the particles of the structural frame increases, which leads to the breakdown of bonds between its elements. The maximum destruction of the system occurs at a temperature of 40 °С. The experimental data showed that the pH of the ciminal ointment is in the range from 5,5 to 7.5, which is optimal for the treatment of infected wounds. The pharmacokinetic parameters of the drug were determined: reaction rate of release of active substances; reaction rate constants, half-life. The kinetic processes of ciminals release from the drug are described by the first-order equation. The composition and technology of the ointment have been substantiated on the basis of experimental studies.